C# - Update Panel Stops Working In IE 8 When Site Is Redirected Via A Proxy Server?

Mar 11, 2011

the site normally works fine in all popular browsers including firefox, chrome, safari and ie.

but doesn't work in ie 8 when it's redirected via a proxy server and it gives an error saying

"Message: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near 'DOCTYPE html PUB'."

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[Code]....

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[Code]....

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[Code].....

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[Code]....

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